Hello,
Two months ago I reported an issue regarding trees not fully loading when I play with aircraft or helicopters (air units), both in Air Realistic mode and Ground Realistic mode. Please investigate this so the problem can be resolved sooner.
I have already deleted and reinstalled the game twice, but reinstalling did not fix the issue. Complete information is available in the link to my request. If you need any additional files or information, please let me know so I can provide them.